How to use the fs-jetpack.inspectTreeAsync function in fs-jetpack

var baseDir;
    if (Array.isArray(options.baseDir)) {
        baseDir = options.baseDir[0];
        if (options.baseDir.length > 1) {
            console.warn("Checking multiple directories is not yet supported for Bower projects.\n" +
                "Checking only the first directory: " + baseDir);
        }
    }
    if (!jetpack.exists(path.join(baseDir, 'bower.json'))) {
        console.log('this does not look like a Bower project, skipping Bower checks.');
        return [];
    }

    bower.config.cwd = baseDir;
    var bowerComponentsDir = path.join(bower.config.cwd, bower.config.directory);
    return jetpack.inspectTreeAsync(bowerComponentsDir, { relativePath: true })
        .then((result) => {
            /**
             * for each component, try to calculate the license from the NPM package info
             * if it is a available because license-checker more closely aligns with our
             * objective.
             */
            return bluebird.map(result.children, (component) => {
                var absPath = path.join(bowerComponentsDir, component.relativePath);
                // npm license check didn't work
                // try to get the license and package info from .bower.json first
                // because it has more metadata than the plain bower.json
      
                var package = '';
      
                try {
                  package = jetpack.read(path.join(absPath, '.bower.json'), 'json');

export async function deleteArchive (key) {
  const path = getArchiveMetaPath(key)
  const info = await jetpack.inspectTreeAsync(path)
  await Promise.all([
    db.run(`DELETE FROM archives WHERE key=?`, key),
    db.run(`DELETE FROM archives_meta WHERE key=?`, key),
    jetpack.removeAsync(path)
  ])
  return info ? info.size : 0
}

exports.deleteArchive = async function (key) {
  const path = getArchiveMetaPath(key)
  const info = await jetpack.inspectTreeAsync(path)
  await Promise.all([
    db.run(`DELETE FROM archives WHERE key=?`, key),
    db.run(`DELETE FROM archives_meta WHERE key=?`, key),
    db.run(`DELETE FROM archives_meta_type WHERE key=?`, key),
    jetpack.removeAsync(path),
    jetpack.removeAsync(getInternalLocalSyncPath(key))
  ])
  return info.size
}

export async function deleteArchive (key) {
  const path = getArchiveMetaPath(key)
  const info = await jetpack.inspectTreeAsync(path)
  await Promise.all([
    db.run(`DELETE FROM archives WHERE key=?`, key),
    db.run(`DELETE FROM archives_meta WHERE key=?`, key),
    db.run(`DELETE FROM archives_meta_type WHERE key=?`, key),
    jetpack.removeAsync(path)
  ])
  return info.size
}